Magnetic Field Strength
The magnetic field strength associated with a rotating superconductor is given by:
where M and Q are the mass and the charge of the superconducting charge carriers respectively. For the case of Cooper pairs of electrons, M=2me and Q=2e. Despite the electrons existing in a strongly-interacting environment, me denotes here the mass of the bare electrons (as in vacuum), and not e.g. the effective mass of conducting electrons of the normal phase.
Read more about this topic: London Moment
Famous quotes containing the words magnetic, field and/or strength:
“We are in great haste to construct a magnetic telegraph from Maine to Texas; but Maine and Texas, it may be, have nothing important to communicate.”
—Henry David Thoreau (1817–1862)
“Swift blazing flag of the regiment,
Eagle with crest of red and gold,
These men were born to drill and die.
Point for them the virtue of slaughter,
Make plain to them the excellence of killing
And a field where a thousand corpses lie.”
—Stephen Crane (1871–1900)
“Women will not advance except by joining together in cooperative action.... Unlike other groups, women do not need to set affiliation and strength in opposition one against the other. We can readily integrate the two, search for more and better ways to use affiliation to enhance strength—and strength to enhance affiliation.”
—Jean Baker Miller (20th century)